Fix up the group list problem that Mac reported wrt the user not being in the full set of subgroups, which can break swapping an experiment created in a subgroup.
Fix up the group list problem that Mac reported wrt the user not being
in the full set of subgroups, which can break swapping an experiment
created in a subgroup.

nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome